3 citations,
August 2022 in “Cutis” Certain nail conditions can suggest thyroid problems, with different symptoms for underactive (slow, thin nails) and overactive (spoon-shaped, brittle nails) thyroid.
1 citations,
January 2010 in “Springer eBooks” Certain micronutrients may improve hair and nail health, but more research is needed to confirm their benefits.
5 citations,
January 2012 in “Journal of nutrition & food sciences” The supplement improved hair, skin, and nails appearance and had long-term benefits.
September 2022 in “Farmacja Polska” Biotin is important for health, but taking extra usually doesn't help unless you're deficient.
7 citations,
May 2014 in “Clinical practice” Cooling the scalp may prevent hair loss from chemotherapy, hair often grows back after treatment, and nail issues usually improve after stopping the drug.
June 2020 in “International journal of research in dermatology” Taking choline-stabilized orthosilicic acid orally significantly improved hair, skin, and nail health without side effects.
January 2019 in “Journal of cosmetology & trichology” L-Cystine and L-Cystine with Kera-Diet® safely improved hair and nail quality in healthy women.
7 citations,
January 2022 in “Evidence-based complementary and alternative medicine” Ginger supplements helped reduce symptoms and improve metabolic health in hypothyroid patients.
Newer retinoid drugs are effective for skin conditions but have significant side effects.
January 2019 in “SAGE Open Medical Case Reports” A scalp biopsy revealed systemic amyloidosis in a woman who initially seemed to have a common hair loss condition.
134 citations,
December 2018 in “Dermatology and Therapy” Some vitamins and minerals like vitamin D and iron can help with certain types of hair loss, but more research is needed for others.
30 citations,
April 2007 in “Dermatologic Clinics” The document concludes that new treatments are needed to better manage acne and reduce side effects related to current therapies.
March 2014 in “CRC Press eBooks” Some nutrients and antioxidants may improve skin and hair health, but more research is needed to confirm these benefits.
1 citations,
November 2022 in “Molecules/Molecules online/Molecules annual” Some calcium supplements have more calcium than their labels say, and a few have less.
78 citations,
December 2011 in “Clinical toxicology” Excessive selenium from a supplement caused toxicity but patients recovered with care.
April 2024 in “Current research in nutrition and food science” Taking an amino acid supplement improved skin, hair, and nail health in women.
November 2024 in “Journal of Scientific Agriculture” Silk proteins are great for cosmetics because they protect and improve skin and hair while being eco-friendly.
26 citations,
October 2020 in “Pediatric Dermatology” Oral tofacitinib may effectively treat hair loss in children with alopecia areata.
December 2023 in “International journal of research in dermatology” Most pregnant women experience common skin changes like linea nigra and stretch marks.
1 citations,
August 2023 in “Journal of cosmetic dermatology (Print)” Too much selenium can cause hair loss and nail problems.
12 citations,
June 2023 in “Journal of trace elements in medicine and biology” Eating too much selenium can cause bad breath, hair loss, and nail changes, with harmful effects starting at low daily doses.
8 citations,
December 2021 in “BMJ neurology open” Sodium selenate was found to be safe and possibly slows Alzheimer's progression, but more research is needed.
The conclusion is that hair supplement ingredients may be unsafe and should be disclosed and proven safe before use.
1 citations,
May 2021 in “Research journal of topical and cosmetic sciences” Muttaijow ComplexTM improved skin, hair, and nail health in middle-aged adults.
24 citations,
July 2011 in “PubMed” Thyroid hormones affect skin texture, hair and nail growth, and can cause skin diseases related to thyroid problems.
September 2021 in “CRC Press eBooks” Pregnancy can cause normal skin changes, including darkening of certain areas, nail changes, vascular changes, and breast changes like stretch marks.
February 2009 in “Springer eBooks” Pregnancy can cause more body and scalp hair growth and make nails brittle, but these changes often revert after giving birth.
19 citations,
January 2018 Most people with alopecia areata have nail changes, which are common but don't greatly affect their quality of life.
26 citations,
October 2016 in “Case Reports in Dermatology” A man with severe hair loss saw hair and nail improvement after 10 months on tofacitinib without side effects.
July 2018 in “British Journal of Dermatology” Hair regrowth was seen in 83% of children with alopecia, immune system plays a role in the condition, and various treatments showed effectiveness for hair and nail disorders.